C9 vs C7 Christmas lights: which bulb fits your Gulf Breeze home

Drive Gulf Breeze in December and the homes that make you slow down usually share one bulb: the big C9. Its smaller cousin, the C7, is the refined pick for columns, windows and smaller homes. Here is how we choose between them on every Christmas light installation job.

C9 and C7 basics for Christmas light installation in Gulf Breeze

A C9 is the big strawberry-shaped bulb on an E17 base. The number is the bulb width in eighths of an inch, so a C9 is nine-eighths of an inch across. A C7 has the same shape one size down, on a smaller E12 candelabra base.

Holiday light installation: pick the bulb by viewing distance

C9s are made to be seen from the street, so they trace rooflines and gables. C7s draw a finer edge on windows, railings and porch columns, and mini lights wrap trunks and shrubs.

Common holiday light installation mistakes

Mixing bulb sizes on one run, or warm white and cool white on one roofline. Keep each run uniform.

LED, smooth or faceted: the next choice

LED C9s and C7s draw a small fraction of the power, stay cool and have no filament to burn out. Smooth lenses give a soft glow that looks good on waterfront homes. Faceted lenses scatter the light into sparkle, and warm white faceted is the roofline look we install most.

When to hire a Christmas light installation pro

Pros build each run from an empty socket cord and boxes of bulbs, cut to fit your roofline. You get exact spacing and no extra wire hanging off the roof.

Questions to ask before you hire

Ask which bulb size they plan for each part of the home, if the bulbs are LED, and who supplies and stores them.

Quick tip: Christmas light installation in Gulf Breeze weather

Warm white flatters brick, stucco and palms. Pick one color direction per roofline and stay with it.

Next step

Ready to book? See our Christmas light installation page or contact Show My Lights. Back to the blog.